ESP8266 Community Forum

- Sat Nov 08, 2014 12:06 pm #2337 Hi All,

Just got a few of these to play with but I haven't seen anything regarding how much ram is available? It seems the OS is in ROM (??) and the SPI flash is 512K (??) but I haven't seen anything about how much ram is available. Perhaps I just missed it?

I'm thinking implementing a small kernel that can receive tasks over the wifi and execute them but I'm wondering if there is enough mem to make it a worthwhile thing to do.

Thanks and apologies in advance is this info is somewhere obvious.

Thanks!

- Sun Nov 09, 2014 10:51 am #2370 My wild guess is that ES8266 has only some small ROM containing just the bootloader, and something like 128 +128 or maybe 256 + 64 KiB of RAM, from which programs are executed. The bootloader loads at least two distinct blocks from SPI Flash to RAM.

... And corrections are, of course, welcome...

- Sun Nov 09, 2014 12:43 pm #2372

Perhaps I just missed it?

forum search will help you

I'm thinking implementing a small kernel

i would say, on ESP8266 this is bad idea, again forum search will help

I don't want to be human! I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter ...
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.

- Sun Nov 09, 2014 12:44 pm #2374

My wild guess is that ES8266 has

everything has been already said, and it is docummented as well, there is no need to guess anything.

I don't want to be human! I want to see gamma rays, I want to hear X-rays, and I want to smell dark matter ...
I want to reach out with something other than these prehensile paws and feel the solar wind of a supernova flowing over me.